期刊
SCANDINAVIAN JOURNAL OF FOREST RESEARCH
卷 36, 期 2-3, 页码 126-134出版社
TAYLOR & FRANCIS AS
DOI: 10.1080/02827581.2021.1901980
关键词
Germination; growth and survival; ectomycorrhiza formation; pathogenic fungi; soil scarification
类别
The study found that removing surface soil may promote seed germination but result in lower seedling survival, while replacing soil can enhance seedling total weight and ectomycorrhizal formation rate. Correlation analysis showed that high soil moisture content associated with organic soil contributes to seedling survival and growth.
To examine the potential for natural regeneration of Picea glehnii, seeds and current-year seedlings were evaluated at a scarification site. Three surface-soil treatments of different scarification intensity were used: removed, organic soil was mostly removed from the site; remained, some soil remained at the site; and replaced, the soil was removed but replaced. Seeds were sown in the fall, and samples were collected in the following spring to examine the rot rate by fungi. Germination, mortality, growth, and mycorrhiza formation rate of the seedlings were recorded in the first growing season. The seed rot rate was generally low, and no significant differences among surface-soil treatments were observed. The germination rate was higher in the removed treatment than in the other treatments, but seedling survival was lower, and the final seedling density was similar to that in the replaced treatment. Seedling total weight and ectomycorrhizal formation rate were higher in the replaced treatment than in the removed treatment, suggesting that the higher amount of organic soil at the site led to better growth at least in the first growing season. Correlation analysis indicated that a high soil moisture content associated with the presence of organic soil contributed to survival and growth.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据